Mutable Infrastructure
Mutable infrastructure is an approach in IT operations where servers and infrastructure components are modified, updated, or reconfigured in-place after deployment. This traditional method involves making changes directly to existing systems, such as installing patches, updating configurations, or adding software, which can lead to configuration drift and inconsistencies over time. It contrasts with immutable infrastructure, where components are replaced rather than changed, promoting consistency and reliability.
Developers should understand mutable infrastructure when working in legacy environments, on-premises data centers, or systems where frequent changes are necessary without full redeployment. It's relevant for scenarios requiring quick fixes, testing configurations in development, or managing systems where immutable patterns are impractical due to cost or complexity. However, it's often considered less reliable for production due to risks like configuration drift and deployment failures.